CDI

CDI, CDi, CD-i, or .cdi may refer to:

Science and technology

• Capacitive deionization, a water desalination technology based on the use of electrical field effects
• Carbonyldiimidazole, a peptide coupling agent
• CD-i or Compact Disc Interactive, an interactive multimedia CD player and format developed and marketed by Royal Philips Electronics, N.V.
• .cdi filename extension, for DiscJuggler disk images, developed by Padus, Inc.
• Coherent diffraction imaging, a lensless nanoscale imaging technique
• Collector diffusion isolation, a technique used in semiconductor device fabrication
• Contexts and Dependency Injection, a technique used in Java for setting fields in a container managed application, according to the inversion of control design pattern
• Color discrimination index, a measure relevant for appraisal of color rendering
• Conditioned diphase, a method of digital baseband transmission
• Conductivity depth image, a fast conducivity transform method used in geophysics
• Consumer device integration, a term that describes the integration of mobile devices into car infotainment systems
• Customer Data Integration, a data processing domain relating to the accurate and consistent representation of customer data across enterprise systems
• Cyrel Digital Imager, a direct laser engraving flexography plate printing device

Aviation

• Compass directional indicator, a type of heading indicator flight instrument
• Course Deviation Indicator, an avionics instrument used in aircraft navigation

Engines

• Capacitor discharge ignition or thyristor ignition, a type of electronic ignition system
• Common direct injection, a synonym of common rail; a type of fuel injection

Medicine and biology

• Color Doppler Imaging, type of Doppler sonography
• Combined drug intoxication, also known as Multiple Drug Intake (MDI), an unnatural cause of human death
• MacArthur-Bates Communicative Development Inventory, tool for assessing the language development of infants and children
• Conformation Dependent Immunoassay, proprietary immunoassay method to directly reveal and measure minute amounts of infectious prion proteins in brain tissue
• Central diabetes insipidus, an endocrinological disorder
• Current density imaging, an extension of magnetic resonance imaging (MRI)
• Clostridium difficile infection, an intestinal disease, see clostridium difficile
• Cyclin-dependent kinase inhibitor protein, a protein which inhibits cyclin-dependent kinase

Organizations

• Center for Digital Inclusion, originally Comitê para Democratização da Informática, non-governmental organization in Brazil
• China Development Institute, a think tank located in Shenzhen for research and consulting established in February 1989 upon the approval of State Council
• Churchill Downs Incorporated, parent company of Churchill Downs
• Collège des Ingénieurs, educational institution in France, Germany and Italy
• Christian Democrat International, former name of Centrist Democrat International, a political international created in 1961 in Santiago de Chile
• Center for Defense Information, Washington, D.C. think tank founded in 1972 by retired U.S. Navy Rear Admiral Gene La Rocque
• Comisión Nacional para el Desarrollo de los Pueblos Indígenas, Mexico's National Commission for the Development of Indigenous Peoples
• Controlled Demolition, Inc., Phoenix, Maryland firm that specializes in the use of explosives to create a controlled demolition of a structure

Business

• CDI Corporation, an engineering services and employment agency in Philadelphia, PA
• Color Design India, Fountain & LED Lighting, Leading Designer for Fountains & LED Lights
• Category Development Index, measures the sales strength of a particular category of product, within a specific market
• Contrat à durée indéterminée, French for open-ended contract (lit. "contract of undetermined duration"), the usual form of employment contract in France
• CREST Depositary Interest, in investing, a form of depositary receipt in the UK
• Customer Data Integration, combines the technology, processes and services needed to set up and maintain an accurate, timely, complete and comprehensive representation of a customer across multiple channels, business-lines, and enterprises
• Collateral Duty Inspector, maintenance position doing quality assurance
• Chung Dahm Institute, is an English language institute in South Korea.

Television, film, and music

• Chak De! India, 2007 Bollywood sports film about field hockey in India

Society and Social Science

• Child Development Index, a measure of global child poverty defined by the save the children organization.
• Certified Deaf Interpreter, a sign language interpreter who is deaf and interprets between American Sign Language and other forms of visual/gestural communication

Military and government

• Chief of Defence Intelligence, head of the UK Defence Intelligence Staff
• Custodial Detention Index, list of U.S. residents compiled by FBI during 1939-1941, later used for Japanese American internment
• Cote d'Ivoire, once known as Ivory Coast, country in West Africa